Russia has turn back its clocks for the last time on Sunday to permanently adopt winter hours.
It has also increased its time zones from nine to 11, from the Pacific to the borders of the European Union.
For the last three years, Russia experimented with keeping permanent summer time, but it proved to be highly unpopular with many Russians.
The Soviet Union introduced Daylight Saving Time in 1981.
In 2011, then President Dmitry Medvedev introduced measures to reduce Russia's time zones to nine, and to keep summer time all year round.
Russians put their clocks forward one hour but did not put them back in winter time.
At a news conference in Moscow, representatives of the Russian Academy of Sciences said that Europe would now be closer as the difference between the capital and Greenwich Mean Time would only be three hours.